body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: #f0f4f8;
  color: #333;
}

.container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.hero {
  text-align: center;
  margin-bottom: 40px;
}

.hero-title {
  font-size: 3rem;
  color: #1a73e8;
  margin-bottom: 10px;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: #666;
}

.content {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: center;
}

.card {
  background: white;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  padding: 20px;
  width: 300px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.card h2 {
  font-size: 1.5rem;
  color: #1a73e8;
  margin-bottom: 10px;
}

.card p {
  font-size: 1rem;
  color: #555;
}

.card a {
  color: #1a73e8;
  text-decoration: none;
  font-weight: bold;
}

.card a:hover {
  text-decoration: underline;
}

/* Animation delays */
.animate__animated.animate__fadeInDown {
  animation-delay: 0.2s;
}

.animate__animated.animate__fadeInUp {
  animation-delay: 0.4s;
}

.animate__animated.animate__fadeInLeft {
  animation-delay: 0.6s;
}

.animate__animated.animate__fadeInRight {
  animation-delay: 0.8s;
}

/* 修改计数器相关的样式 */
.counter-wrapper {
  margin-top: 32px;
  text-align: center;
  animation-delay: 0.6s;
}

.counter-display {
  font-size: 48px;
  font-weight: 700;
  color: #1a73e8;
  margin-bottom: 16px;
}

.counter-display span {
  display: inline-block;
  min-width: 60px;
}

.counter-btn {
  background: #1a73e8;
  color: white;
  border: none;
  padding: 12px 28px;
  border-radius: 24px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.counter-btn:hover {
  background: #1557b0;
  transform: translateY(-2px);
}

.counter-btn:active {
  transform: translateY(0);
}

@keyframes numberPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.2); }
  100% { transform: scale(1); }
}

.number-pop {
  animation: numberPop 0.3s ease-out;
}